Control method of SCR flue gas denitration in thermal power plants based on LSTM algorithm
Due to the instability of the initial state parameters of flue gas in the SCR denitration process of thermal power plants,the control of flue gas NOx concentration is challenging.Therefore,in order to accurately control the denitration of flue gas and effectively reduce the concentration of NOx in flue gas,a control method for SCR flue gas denitration in thermal power plants based on the LSTM algorithm is proposed.Based on the honeycomb catalyst,combined with its action mode in the SCR flue gas denitration process,the model for SCR flue gas denitration in thermal power plants is constructed from two perspectives:Pore channels and wall interiors.The LSTM algorithm is introduced,with the control requirement of NOx concentration in flue gas as the target,taking the input rate of the catalyst as the control parameter,and combining the initial state parameters of the flue gas to realize the control of the SCR flue gas denitration process.In the test results,the NOx concentration of flue gas at the outlet of the denitration reactor under the designed control method is not significantly affected by the flue gas flow,and is always stable within 125.0 mg/m³,far below the critical value(150.0 mg/m³).Compared with the control group,it has a more reliable denitration effect.
LSTM algorithmthermal power plantSCR flue gasdenitration controlhoneycomb catalystSCR flue gas denitration modelNOx concentrationinput rate
万方数据
维普
